CATALOGUE. 327 simpler upwards, the terminal segment with a rounded or obtuse outer margin, and the serratures ofthe sterile segments having a veinlet extending to the point (not to the sinus). The present species has both surfaces of the frond minutely pilose with appressed whitish hairs. The involucres are variable in shape, oblong and linear on the same pinnule, and rather few (3-7) in number. This is apparently a rare species, as I can not learn that it has been collected by any one in California since the time of Nuttall. It is No. 11 of Ervendberg's collection of Huasteca plants, and No. 687 of Schott's collection made in Yucatan in 1865. Tkibb m. ASPIiEWIEiE. IX. LOMARIA. Willd. Sori in a continuous band next the midrib of the contracted pinnse of the fertile frond, covered till mature by an elongated involucre, either formed of the recurved and altered margin of the pinnse or else sub-marginal and parallel to the margin. Veins of the sterile frond oblique to the midrib, simple or forked and free. Fronds mostly elongated, pinnatifid or pinnate, in foreign species rarely undivided or bipinnate, of two kinds, the sterile foliaceous, the fertile commonly much contracted.—^A genus of about sixty species, finding its greatest development in the southern hemisphere. It is closely connected with Blechnum, which has the involucre remote from the margin, and the fertile frond not much contracted. The two genera were united by Dr. Mettenlus, but it is more convenient to keep them apart. liomaria Spicant, Desvaux. Rootstock short and thick, very chaffy; fronds tufted, erect; sterile ones nearly sessile or short-stalked, sub-coriaceous, narrowly linear-lan¬ ceolate, 8-24 inches long, 1 -3 inches wide, tapering to both ends, pinnatifid to the rachis into very numerous close-set oblong or oblong-linear often upwardly-curved obtuse or apiculate segments, the lower ones gradually diminished to minute auricles; fertile fronds sometimes three feet high, long- stalked, pinnate; the pinnse somewhat fewer and more distant, longer and much tiarrower than in the sterile frond, sessile by a suddenly widened base; involucres distinctly inti-amarginal.—"Desv. in Berl. Mag. v, p. 325." Hook. Sp. Fil. iii, p. 14. Osmunda Spicant, Linn. Sp. Pl. p. 1522. Blech¬ num boreale, Swartz, S}^. Fil. p. 115. Hook. British Ferns, t. 40. From Mendocino County, California [Bolander) and near Crescent City (Pr««er) to Oregon, British Columbia, and Sitka. It therefore hardly comes within the geographical range adopted for this report, but is still likely to be found to the south ofthe 40th parallel in the Coast Eanges of California. It is not an uncommon Fern throughout Europe, and a form of it has been collected in Japan. The North American plant was made a var. elongata by Sir W. J. Hooker in the Species Filicum, but the smaller European form has been collected near Astoria, Oregon, by Prof, Wood, and the large specimens from the